604results about How to "Improve seismic performance" patented technology

The invention discloses a concrete modular integrated building connecting system which comprises connection of a plurality of concrete modular box bodies, each concrete modular box body is composed of a prefabricated top plate, a prefabricated bottom plate, a prefabricated beam, a prefabricated shear wall and a prefabricated partition wall, and each concrete modular box body is formed through integral pouring; a reserved post-pouring area is arranged at the joint of every two adjacent box components, and notches are formed in the prefabricated top plates; connecting steel bars are in lap joint with the notches, and concrete post-pouring is conducted after the steel bars are in lap joint; u-shaped notches are formed in the prefabricated beams, upper and lower lap joint steel bars are laid at the U-shaped notches, and the two half sections of the prefabricated beams are connected into a whole after concrete is cast in place; a linear vertical notch is formed in the prefabricated shear wall between every two adjacent box bodies, the rib bodies of the wall bodies are connected in the linear notches, all the box bodies are stably connected through lap joint of the reinforcing steel bars and cast-in-place concrete of the cavities, and the prefabricated shear wall is suitable for high-rise buildings, can reduce the workload of a construction site and has good mechanical performance and anti-seismic performance.

The invention discloses a connecting joint for vertical steel bars of a prefabricated panel by adopting UHPFRC (Ultra High Performance Fiber Reinforced Concrete) lap joint, and belongs to the technical field of building structures. The connecting joint comprises a first prefabricated wall panel and a second prefabricated wall panel, wherein the first prefabricated wall panel comprises a connecting hole and a first connecting steel bar; the second prefabricated wallboard comprises second connecting steel bars, the first connecting steel bars and the second connecting steel bars are arranged in the connecting holes at intervals, and UHPFRC is poured into the connecting holes. The connecting holes are formed in the horizontal joints of the bottoms or the tops of the prefabricated wall panels, the connecting steel bars are arranged in the connecting holes, the connecting steel bars extending out of the prefabricated wall bodies adjacent to the horizontal joints are in single-row or double-row lap joint in the connecting holes by pouring the UHPFRC, and therefore formworks and sleeves / casing pipes are omitted, and the construction cost is reduced. The construction technology of vertical steel bar connection in the fabricated shear wall is obviously simplified, and the connection cost is reduced.

The invention relates to the technical field of circuit board preparation, and discloses a multilayer composite circuit board preparation method and a multilayer composite circuit board, and the method comprises the steps: mixing ceramic-based powder with nano metal particles, and carrying out sintering to form a heat-conducting microporous ceramic material with a continuous heat-conducting network and a microporous structure; a plurality of heat-conducting microporous ceramic materials are laminated and then pressed into a composite substrate through vacuum hot pressing, and through heat-conducting through holes are formed in the composite substrate; the composite substrates with the heat conduction through holes are stacked, a micropore layer used for heat conduction and shock absorption is arranged between every two adjacent composite substrates, and the stacked composite substrates and the micropore layers are subjected to vacuum hot pressing to form a multi-layer structure. According to the multi-layer composite circuit board preparation method and the multi-layer composite circuit board, through the continuous heat conduction network, the micropore structure and the micropore layer, the heat conduction performance is remarkably improved, thermal stress and mechanical stress are effectively released through the elastic characteristic of the micropore structure, and the overall stability of the multi-layer composite circuit board is enhanced.

The invention relates to the technical field of high-strength aluminum alloy forge piece machining, and discloses stamping equipment for high-strength aluminum alloy cover plate production and a stamping method.The outer side face of an equipment outer base is connected with a center bearing table through a connecting arm, and a stamping support is installed at the front position of the upper end face of the center bearing table; the top of the stamping support is horizontally connected with an air cylinder seat, a stamping air cylinder is vertically installed in the middle of the air cylinder seat, an air cylinder rod is movably arranged in the stamping air cylinder in a downward extending mode, and a rigid pressure seat is welded to the lower end of the air cylinder rod. According to the stamping equipment for producing the high-strength aluminum alloy cover plate and the stamping method of the stamping equipment, by means of moving power of the positioning column, a pressing head of the positioning column generates extrusion acting force on the hydraulic column in the moving process, so that a plug seat pushes hydraulic oil in a hydraulic oil cavity, the hydraulic oil flows outwards from a unique oil hole, and the hydraulic oil is conveyed through a pipeline; and the hydraulic oil is upwards injected into the damping oil bag, so that the damping oil bag is transversely expanded after being filled.

The utility model provides a concrete filled steel tube flat cylindrical surface outer beam reinforcing node, the outer contour of the section of a concrete filled steel tube flat column is rectangular, a longitudinal insertion plate is arranged between the middle parts of short edges in the column along the full height, and brackets are arranged at the rear part of a left outer cylindrical surface and the front part of a right outer cylindrical surface according to the same structural form; transverse reinforcing plates are respectively arranged in the left area and the right area corresponding to the joint with the bracket; sealing plates and transverse stiffening ribs are arranged on the portions, on the two sides of a bracket connecting web plate, of the end, connected with the concrete-filled steel tube flat column, of the bracket according to the same structural form, and haunched upper flange plates and underarm flange plates are welded to the portions, between the sealing plates and the outer cylindrical surface of the concrete-filled steel tube flat column, of the upper end of a bracket upper flange and the lower end of a bracket lower flange respectively. The haunching upper flange plate and the haunching underarm flange plate are vertically symmetrical, and plate bodies are inclined and are as wide as the bracket. The utility model solves the problem of column exposure of a high-rise steel structure building structure and the problem of insufficient out-of-plane connection rigidity of a flat column system, and is convenient to construct.

The utility model discloses a glass curtain wall with a high-strength connecting structure, which belongs to the technical field of glass curtain walls, and is technically characterized by comprising a curtain wall main body, and the curtain wall main body is of a three-layer stacking structure through an arranged butt joint stable mounting mechanism. The transparent sound insulation film for sound insulation is arranged at the joint of the inner-layer curtain wall body and the outer-layer curtain wall body, so that the sound insulation performance of the glass curtain wall is improved, meanwhile, the butt-joint stable installation mechanism also prevents external dust and water from entering a butt-joint installation gap, installation sealing protection of the glass curtain wall is achieved, and the service life of the glass curtain wall is prolonged. In addition, the overall installation stability of the curtain wall is correspondingly achieved through the butt joint stable installation mechanism, the supporting strength and rigidity of the glass curtain wall in use are remarkably improved, the stability is high, vibration and pressure can be buffered and dispersed through the arranged pressure-resistant buffering mechanism, pressure-resistant protection of the glass curtain wall is achieved, the pressure-resistant and anti-seismic performance is high, and the service life of the glass curtain wall is prolonged. The connecting structure has the advantages of good connecting stability and high strength.

The invention discloses a three-degree-of-freedom macro-micro composite piezoelectric nano probe station, and relates to the technical field of semiconductor manufacturing and biotechnology. In order to solve the technical problems that in the prior art, an existing motor-driven probe station is large in cooperative control difficulty, the positioning precision and the stability are difficult to consider, the structure is complex, and the energy consumption is high, the technical scheme provided by the invention is that the three-degree-of-freedom macro-micro composite piezoelectric nano probe station is provided. Comprising a probe bench surface, an XY macro-motion mechanism, an XY micro-motion mechanism and a Z-direction mechanism. The XY macro-motion mechanism comprises an X piezoelectric motor and a Y piezoelectric motor which are used for achieving dozens of millimeter level horizontal movement in the X-axis direction and the Y-axis direction respectively. The XY micro-motion mechanism is used for realizing accurate movement of several nanometers to dozens of nanometers in the X-axis direction and the Y-axis direction; the Z-direction mechanism is used for realizing dozens of microns of lifting in the Z-axis direction; the probe bench surface is used for bearing a bearing object and is also used for driving the bearing object to move along the X-axis and Y-axis directions. The device is suitable for semiconductor manufacturing and biotechnology testing work.

The invention discloses a fabricated shear wall component positioning and mounting system and method. The system comprises a steel bar frame arranged at the top of a lower-layer shear wall component and triangular frames arranged on the side face of a to-be-mounted layer shear wall component in parallel at intervals. A connecting handrail is arranged on the tripod; the positions of electrical wiring preformed holes and embedded bolts are positioned by arranging a steel bar frame at the positions of hanging nails on a lower-layer shear wall component, so that the accuracy of embedding of wire pipes and bolts is ensured; the in-place installation track of the to-be-installed layer shear wall component is controlled through the positioning grooves in the triangular frames, so that connection between the to-be-installed layer shear wall component and top joint bars of the lower layer shear wall component is accurate; the connecting handrails are used for assisting in in-place mounting of the to-be-mounted layer shear wall component and the lower layer shear wall component, shaking in the connecting and positioning process of the shear wall and the joint bars of the base is avoided, and the assembling efficiency of the shear wall is improved.

The invention provides a piston type shielding door, and particularly relates to the technical field of radiation shielding, the piston type shielding door comprises a door frame, and the door frame is mounted on a wall body. The upper portion of the side, facing the door frame, of the door body and the left side and the right side, close to the door frame, of the door body are concave inwards to form stepped structures, the moving direction of the door body is perpendicular to the wall, and the door frame is matched with the door body to form labyrinth seal. And the sliding device is fixedly mounted at the bottom of the door body. And the bearing device is mounted on the ground at the bottom of the door body, and the bearing device is interactively matched with the sliding device. And the driving device is fixedly installed on the side, away from the door frame, of the door body, and the driving device is used for driving the door body to move on the bearing device through the sliding device. According to the piston type shielding door, the technical problems that a shielding door is poor in shielding effect, high in construction requirement and serious in abrasion of internal parts are solved, and the piston type shielding door is complete in shielding, low in construction difficulty and long in service life.

The full-spiral stirrup rectangular stand column is formed by jointly pouring a concrete rectangular frame column, a steel reinforcement framework and concrete, the steel reinforcement framework comprises longitudinal bars, large spiral stirrups, small circular spiral stirrups and tie bars, the large spiral stirrups are arranged on the inner side face of the concrete rectangular frame column in an attached mode, and the small circular spiral stirrups are arranged on the inner side face of the concrete rectangular frame column in an attached mode. The longitudinal bars are evenly arranged along the periphery of the rectangular section of the concrete rectangular frame column and connected with the inner edge peripheries of the large spiral stirrups and the inner edge peripheries of the small circular spiral stirrups respectively, and the tie bars are located between the small circular spiral stirrups and connected between the two opposite longitudinal bars. The structure breaks through the limitation that a traditional spiral stirrup is only suitable for a circular stand column, overcomes the defect that the spiral stirrup is applied to a rectangular stand column, and enables concrete at four corner points of the stand column to fully exert the restraining effect. The constraint effect of the spiral stirrups on concrete is fully exerted, the bearing capacity and ductility of the stand column are improved, mechanical automatic rolling forming can be fully utilized, the labor intensity and dependence on manpower are reduced, the accuracy of steel bar engineering and the quality and safety of the structure are improved, the industrialization degree is high, and good economic benefits are achieved.

The invention provides a ceramic filter tube as well as a preparation method and application thereof. The ceramic filter tube comprises a foamed nickel supporting framework; the ceramic filter tube base bodies are integrally formed on the surfaces of the two sides of the foamed nickel supporting framework; the catalyst is loaded in a pore channel of the ceramic filter tube matrix and loaded in the foamed nickel supporting framework. According to the ceramic filter tube provided by the invention, the foamed nickel supporting framework is used as a reinforcing structure of the ceramic filter tube, and the ceramic filter tube base body is integrally formed on the surfaces of the two sides of the foamed nickel supporting framework, so that the problem of incompatibility caused by material difference of an existing reinforcing structure is fundamentally solved; the problem of pipe breakage caused by separation and falling of the reinforcing structure and the ceramic filter pipe is avoided, the possibility of pipe breakage of the ceramic filter pipe in the high-temperature flue gas use process is reduced, the anti-seismic property of the ceramic filter pipe is improved, and the service life of the ceramic filter pipe is prolonged; the catalytic performance of the catalyst is also improved.

The invention relates to the technical field of batteries, and discloses an integrated battery module which comprises a shell, a top cover is arranged at the top of the shell, side protection blocks are arranged on the left side and the right side of the shell, front protection blocks are arranged on the front side and the rear side of the shell, and a plurality of positioning rods are fixedly connected to the inner wall of the shell. The outer wall of the positioning rod is slidably connected with a plurality of sliding sleeves, one side of each sliding sleeve is rotatably connected with a butt joint plate, one side of each butt joint plate is fixedly connected with a contact block, the inner wall of the shell is fixedly connected with a plurality of first dampers, the outer wall of the positioning rod is provided with a plurality of springs, and one side of the shell is provided with a first circulating fan. Through cooperative use of components such as a side protection block, a front protection block, a first damper and a contact block, the anti-deformation effect of the integrated battery module can be effectively improved, and the situation that an internal battery cell group is damaged due to the deformation of the edge of a collision and extrusion shell is reduced.

The cable branch box comprises a box body, the box body is divided into an upper cavity and a lower cavity, a trapezoidal opening is formed in the front end of the upper cavity, a trapezoidal box door is hinged to the trapezoidal opening, a mounting plate is arranged in the upper cavity, three mounting holes are formed in the mounting plate, two-way sleeves are inserted into the three mounting holes, and the two-way sleeves are connected with the trapezoidal box door. One side of the upper cavity is provided with an electrified display and a grounding end, outgoing lines of the three bidirectional sleeves are bound into a whole through a winding pipe and are connected with a connecting line of the electrified display, a grounding line of the electrified display is connected with the grounding end, and the bottom of the lower cavity of the box body is provided with line outlet holes corresponding to the bidirectional sleeves in position. The cable branch box has remarkable advantages in the aspects of design and application of the cable branch box, and a more efficient and safer solution is provided for cable branch connection and monitoring.

The invention relates to the technical field of silencing sheets, in particular to a comprehensive type super-structure sound absorption silencing sheet which comprises a suction skin and an outer cover and further comprises a low-frequency sound absorption structure arranged in the suction skin, and the low-frequency sound absorption structure comprises a first micro-perforated plate, a second micro-perforated plate, a third micro-perforated plate, a first support and a partition plate. The number of the first supports is multiple, the two sides of each first support are fixed to the inner wall of the suction skin, the partition plates are fixed between the adjacent first supports, the third micro-perforated plate and the second micro-perforated plate are fixed to the inner sides of the front partition plate and the rear partition plate respectively, and the first micro-perforated plate is fixed to the inner side of the suction skin. A first sound absorption module is filled between the micro-perforated plate II and the micro-perforated plate III; the sound absorption material has good sound absorption performance for low frequency, intermediate frequency and high frequency, and can be applied to a complex sound environment, so that good full-frequency noise reduction can be achieved.

The invention relates to the field of magnesium phosphate cement-based materials, and particularly discloses an interface-enhanced emulsified asphalt composite magnesium phosphate cement repairing material and application thereof. The repairing material comprises the following components in parts by weight: 400-600 parts of a magnesium phosphate cement-based material, 50-150 parts of emulsified asphalt, 5-10 parts of a toughening organic component, 10-15 parts of an optimizing agent, 8-20 parts of an interface reinforcing agent, 4-10 parts of chemically modified fibers and 80-100 parts of mixing water. The magnesium phosphate cement-based material comprises the following components in parts by weight: 150-300 parts of magnesium oxide powder, 70-150 parts of phosphate and 10-30 parts of a retarder. According to the invention, demulsification of the emulsified asphalt and hydration of the magnesium phosphate cement can be coordinated and matched with each other, the bonding capacity between the repairing material and a repairing interface can be enhanced, and the mechanical property of the repairing material is improved.

The invention relates to the technical field of damping devices, in particular to a damping device and a wall bushing damping structure, the damping device comprises a damping sleeve and a connecting mandrel, a damping cavity and a load buffer cavity are arranged in the damping sleeve, a load buffer piece is arranged in the load buffer cavity, and a buffer solution and a buffer piston are arranged in the damping cavity; the inner connecting end of the connecting mandrel is connected with the load buffering cavity through the load buffering piece, and the connecting mandrel is sleeved with the buffering piston. The self weight of the horizontal cantilever structure is loaded through the damping device, initial rigidity is provided for the horizontal cantilever structure, daily slight vibration can be absorbed through the load buffering piece, and the anti-seismic performance of the horizontal cantilever structure is improved; in the earthquake process, damping force is generated when the load buffering piece is combined with the buffering piston to move in the buffering solution, the double-layer damping effect on the horizontal cantilever in the earthquake process is achieved, the anti-seismic capacity of the horizontal cantilever structure is further improved, plastic deformation is avoided, cost is reduced, and meanwhile the service life is prolonged.

The invention relates to a box girder and gate-type pier combined T-shaped rigid frame bridge and a construction method thereof. The box girder and gate-type pier combined T-shaped rigid frame bridge comprises concrete box girders, gate-type main piers and side piers. The gate-type main pier comprises two pier bodies and a cover beam, the two pier bodies are located on the two sides of the existing line, and the cover beam is located above the existing line and intersects with the existing line; the concrete box girder and the cover beam are arranged in a crossed manner and are positioned above the cover beam, and at the joint of the cover beam and the concrete box girder, the top of the cover beam and the bottom of the No.0 block of the concrete box girder are poured into a whole; the side piers are located on the two sides of the existing line, and the side piers are longitudinally arranged and supported at the bottom of the concrete box girder. Under the condition that the line height is limited, the pier-beam combination height can be reduced, the span is increased, and meanwhile the clearance requirement under the bridge is met; and meanwhile, the pier and the beam are fused, the integrity is good, material use can be reduced, the structural rigidity and the bearing capacity are improved, the span is increased, and better anti-seismic performance is achieved.

The invention discloses a damping block, an infilled wall and a construction method of the infilled wall, the damping block comprises two rubber damping blocks, the two rubber damping blocks are connected through a rubber connecting belt, the corner of each rubber damping block is provided with a damping cavity, and the damping cavity is filled with a damping material; and the building block body is arranged between the two rubber damping blocks. The building block body is embedded into the two rubber damping blocks, so that the transverse damping function of the building block body is realized; due to the fact that the vibration reduction damping cavities are formed in the corners of the rubber vibration reduction block, under the earthquake action, the vibration reduction damping cavities in the corners are extruded and deformed, damping materials in the cavities can consume earthquake energy through the characteristics of deformation, friction, viscosity and the like of the damping materials, the vibration reduction and buffering effects are achieved, and damage to the block body is avoided; therefore, the anti-seismic property and durability of the block wall are obviously improved.

The invention discloses a cutting chain type transverse shaft type cutting mechanism suitable for a coal roadway and a half-coal-rock roadway and a heading machine. The cutting mechanism comprises a main machine frame, a motor, a cutting chain, a left cutting head and a right cutting head, the motor, the cutting chain, the left cutting head and the right cutting head are installed on the main machine frame, the left cutting head and the right cutting head are located on the two sides of the cutting chain respectively, and the motor drives the cutting chain to rotate and drives the left cutting head and the right cutting head to rotate; wherein a plurality of middle cutting teeth are distributed on the cutting chain; a plurality of left cutting teeth are distributed on the left cutting head; a plurality of right cutting teeth are distributed on the right cutting head; at least part of the middle cutting picks are matched with the left cutting picks to form a spiral line shape, and at least part of the middle cutting picks are matched with the right cutting picks to form a V shape. The problem that an existing cutting mechanism is low in cutting efficiency is solved.

The invention discloses a polyether-ether-ketone-inorganic hybrid modified water-based fluorocarbon floor coating with long and super weather resistance and a preparation method of the polyether-ether-ketone-inorganic hybrid modified water-based fluorocarbon floor coating, and belongs to the field of coatings. The coating comprises a component A and a component B, wherein the component A comprises a water-based fluorocarbon modified polyhydroxy acrylic emulsion, a polyether-ether-ketone modified inorganic silicate aqueous dispersion, yttria-stabilized zirconia composite aluminum oxide mixed slurry and other auxiliaries. And the component B comprises an HDI hydrophilic organic silicon modified polyisocyanate curing agent, an HDI hydrophobic isocyanate curing agent and the like. According to the invention, the high inertia and mechanical properties of the organic high polymer can be highlighted, and the adhesiveness of the organic high polymer to a lower coating film is further improved.

The utility model discloses a rubella virus IGG antibody detection kit, and relates to the technical field of kits, in particular to a rubella virus IGG antibody detection kit which comprises a kit body, an adjusting sliding groove is formed in the inner bottom wall of the kit body, a supporting sliding rod is arranged in the adjusting sliding groove, the outer surface of the supporting sliding rod is connected with a connecting sliding block in a sliding mode, and the connecting sliding block is arranged in the adjusting sliding groove. And connecting springs are arranged on the outer surfaces of the connecting sliding blocks. According to the rubella virus IGG antibody detection kit, supporting sliding rods, connecting sliding blocks, connecting springs, a fixing frame, clamping plates, first springs and spring dampers are arranged in a matched mode, in the using process, after a reagent penetrates through a protective baffle, the clamping plates are extruded, the first springs are extruded, the distance between the clamping plates is adjusted, the reagent is inserted into the clamping plates, the clamping plates are clamped, the clamping plates are clamped, and the clamping plates are clamped. Meanwhile, the lower end of the kit is propped against the soft rubber protective pad, so that the rubella virus IGG antibody detection kit has the effects of conveniently and quickly fixing the reagent and improving the shock resistance.

The invention relates to the technical field of battery heat management, in particular to a solid-state battery pack heat dissipation structure which comprises a shell and a heat dissipation pipe, and a solid-state battery pack is inserted into the shell; the heat dissipation pipes are of a wave-shaped structure and are inserted between the adjacent rows of battery cells in parallel; each heat dissipation pipe is provided with a plurality of fixed pipe sections and rotating pipe section groups which are alternately arranged along the extension direction of the heat dissipation pipe, each rotating pipe section group comprises a rotating pipe section which can rotate, and the fixed pipe sections and the rotating pipe section groups of the adjacent heat dissipation pipes are correspondingly arranged and are respectively clamped on two sides of the same battery cell; the first end of the heat dissipation pipe can receive cooling liquid from the outside, and the second end of the heat dissipation pipe can discharge the cooling liquid, so that heat generated by the battery cell is absorbed through the cooling liquid. And when any battery cell is damaged, the damaged battery cell can be easily taken out due to sliding friction between the battery cell and the rotating pipe section, so that the convenience in use is improved.

The utility model provides a reinforcing structure of a prefabricated floor slab, which is used for reinforcing the intersection position of the prefabricated floor slab and an original lintel, and relates to the technical field of building construction, the reinforcing structure of the prefabricated floor slab at least comprises two first connecting pieces, a second connecting piece and two concrete brackets, the two first connecting pieces are located on the two sides of the original lintel correspondingly and vertically penetrate to the position below the prefabricated floor slab correspondingly, the two ends of the second connecting piece transversely penetrate through the original lintel and extend out of the side wall of the original lintel, and the two concrete brackets are located on the two sides of the original lintel correspondingly. And the concrete bracket is integrally connected with the bottom surface of the prefabricated floor slab, the side wall surface of the original lintel, the first connecting piece and the second connecting piece. The reinforcing structure of the prefabricated floor slab can effectively improve the structural strength and the anti-seismic ductility of the prefabricated floor slab.

This utility model discloses a prefabricated reinforced concrete frame structure with steel component connections, belonging to the field of prefabricated building construction technology. Addressing the problems of cumbersome formwork support in traditional cast-in-place frames and the unreliability and partial need for formwork support in existing prefabricated joint connections, this structure includes precast columns, precast main beams with or without corbels, precast secondary beams, composite ribbed composite slabs, and column-to-column connection embedded parts. Rigid beam-column connections are achieved through T-shaped steel corbels, channel steel corbels, steel embedded parts components, and rebar bolt connectors. Grouting sleeves of the column-to-column connection embedded parts connect the longitudinal reinforcement of the upper and lower columns. Steel clips on the composite ribbed composite slabs are engaged and positioned with the main beams, and the precast layer serves as the bottom formwork. This structure achieves a completely support-free and formwork-free process, continuous force transmission at joints, strong seismic resistance, factory prefabrication ensuring quality, high on-site assembly efficiency, reduced construction waste, adaptability to multiple scenarios, and ease of modification. It is suitable for frame buildings such as residential and office buildings.

The utility model relates to the technical field of carding machines, in particular to a carding machine capable of uniformly carding cotton, which comprises a machine body, a mounting mechanism is fixedly connected to the outer side of the machine body, a transmission mechanism is fixedly connected to one end of the mounting mechanism, and a cotton carding mechanism is fixedly connected to the inner side of the mounting mechanism; a cleaning mechanism is fixedly connected to one side of the machine body, and an anti-disengaging mechanism is fixedly connected to the top end in the mounting mechanism. According to the carding machine capable of uniformly carding the cotton, due to the arrangement of the collecting box, the fan and the impurity discharging pipeline, cotton fibers adhered to the carding roller can be conveniently sucked out by the fan when the cotton fibers are carded, and the situation that the subsequent carding effect is affected due to excessive accumulation of the cotton fibers is avoided.

The invention discloses special multifunctional glass with magnetic shielding and shock resistance. The special multifunctional glass sequentially comprises a polymethyl methacrylate layer, a short-wave liquid crystal silver ion liquid crystal film layer, a silicon dioxide high-barium optical glass layer, a silicon dioxide tungsten silver ion liquefaction layer, a nickel wire mesh layer and a polymethyl methacrylate layer from a critical plane, the polymethyl methacrylate layer close to the critical surface is doped with 1% of samarium ions; according to the preparation method, compression and hot melting glue clamping are adopted. 1% of samarium ions are doped in polymethyl methacrylate close to a critical plane, radiation corrosion and ionization discoloration can be controlled, the short-wave liquid crystal silver ion liquid crystal film belongs to cathode and anode diode plasma electric control, and the transparency impression degree is reduced as much as possible in the operation process, so that radiation is further reduced; the silicon dioxide high-barium optical glass is used for conventional light transmission, the silicon dioxide tungsten silver ion liquefaction layer is used for blocking 75% of short-wave gamma rays, and the nickel wire mesh can be used for radiation protection measures in emergency situations and maintenance states.

The application discloses a full-wrapping concrete truss structure and a construction method thereof, and belongs to the technical field of building structures. The full-wrapping concrete truss structure comprises a steel pipe truss assembly arranged between a plurality of steel plates, a wrapping assembly arranged outside the steel pipe truss assembly, and a concrete layer arranged outside the wrapping assembly. The construction method comprises the following steps: S1, preparing a top chord, a bottom chord, a vertical rod and a horizontal rod, wrapping the rods with a reinforcing mesh and welding to obtain a steel pipe truss shell; S2, arranging a diagonal web member assembly inside the shell and arranging a connecting mesh outside the shell to form a steel pipe truss monomer; S3, bolt connecting a plurality of monomers and bolt connecting the steel plates and the monomers at edges to form a steel pipe truss structure; and S4, vibrating the steel pipe truss structure after concrete partition pouring to obtain the full-wrapping concrete truss structure. The application can realize full wrapping of the steel pipe, ensure that the concrete layer is tightly bonded with the steel pipe, and improve the stability and safety of the structure.

The utility model relates to the technical field of automobile wire harness connection, and provides an automobile wire harness rapid connection device which comprises a wire harness connection female end, a side cover fixedly connected to the side face of the wire harness connection female end, an annular groove formed in the front face of the side cover, and a wire harness connection child end arranged on the upper portion of the wire harness connection female end and capable of being connected with the wire harness connection female end in an assembled mode. The wire harness connecting female end and the side cover are provided with a screwing assembly, and the inner wall of the wire harness connecting female end is annularly provided with a mortise lock assembly which can be pushed inwards under the rotation of the screwing assembly so as to complete the insertion and locking of the wire harness connecting sub-end at the wire harness connecting female end. The outer side of the screwing assembly is further provided with an elastic self-locking assembly capable of completing elastic releasing self-locking at the annular groove after the wire harness connecting sub-end is inserted and locked at the wire harness connecting female end. According to the design, mechanical locking is adopted to replace magnetic attraction connection, and a dual-self-locking mechanism design is matched, so that the situation that the wiring harness terminal is loosened under vibration or external force is avoided.

The utility model provides a heat dissipation structure of a lithium ion battery and the lithium ion battery, and relates to the field of lithium ion batteries. The heat dissipation structure of the lithium ion battery comprises a battery shell, a battery module and pouring sealant, one end of the battery shell is provided with an opening, the battery module is arranged in the battery shell through the opening, a pouring gap is formed between the battery module and the battery shell, and the pouring sealant is arranged in the battery shell. And the pouring height of the pouring sealant is higher than the mounting height of the battery module. The encapsulation gap between the battery module and the battery shell is encapsulated by the encapsulation adhesive, and the heat of the battery module is transferred to the battery shell through the encapsulation adhesive, so that an efficient heat dissipation effect can be realized.